code: def _get_hypo_score(hypo: Hypothesis) -> float:
      return hypo[3]
  
imports: from typing import Callable, Dict, List, Optional, Tuple
  import torch
  from torchaudio.models import RNNT
  from torchaudio.prototype.models.rnnt import TrieNode
label_desc: Use image node_id 4 for calling a global function with example usage: _get_hypo_score(hypo) and returns: hypo